138 34. CEASSTTLACE^. 



tt Flowers yellow. :j: Leaves blunt. 



8. S. acre (L.) ; 1. ovoid thick tumid spurred at the base, pet. 

 lanceolate acute, sep. ovate bhmt gibbous at the base, cyme trifid 

 smooth. — E. B. 839. — L. closely imbricate on the barren shoots, 

 very acrid. — Walls and dry places. P. VI. VII. Wall-Pepper. 



E. S. I. 



[9. S. sexanffuldre (L.) ; I. linear terete spurred at the base, 

 pet. lanceolate acute, sep. lanceolate acute not gibbous, cyme trifid 

 smooth.— ^. 5. 1946.— Old walls ; a doubtful native. P. VIZ.] 



E, 



X\ Leaves acute. 



10. S. yejlex\iin (L.) ; I. subulate scattered spurred at the base 

 convex on both sides the lowermost recurved, fl. cymose, sep. ovate 

 rather acute, pet. lanceolate blunt. — S. B. 695. — Barren st. long. 

 L. many, patent or reflexed. Cyme nearly level-topped, its 

 outer branches spreading or recurved. Base of filam. and lateral 

 edges of carp, with glandular hairs. — ji. S. albescens (Haw.) ; 1. 

 more slender glaucous not recurved. S. glaucum Sm. E. B. 

 2477. — "Walls and rocks, common. /3. Dry hills rare. P. VIE. 

 vm. E. S. ? I. 



11. 8. rupes 'tre (L. ? ) ; I. linear-lanceolate spurred at the base 

 Jlattened, fl. imperfectly cymose, sep. elliptic, pet. lanceolate. — 



E. B. 170. — Barren st. short with densely imbricate adpressed 

 glaucous leaves. Fl. corymbose rather than cymose. Filam. 

 and ovaries glabrous. — On limestone rocks. Bristol. Cheddar. 

 Orme's Head, &c. P. VI. Ml. E. I. 



12. S. Forstej-idnum (Sm.) ; 1. lanceolate spuiTed at the base 

 flattened, cyme round-topped compact, sep. ovate, pet. lanceo- 

 late. — E. B. 1802. — Barren st. short, erect, densely leaiy. L. 

 forming small roselike tufts, bright green. Fl. truly cymose. 

 Filam. and ovaries glabrous. Very diiferent fi'om the last in 

 appearance ; but there are 2 forms, (1) with short obconic barren 

 stems and green leaves, (2) with verj' short globular barren 

 stems and glaucous leaves. — Damp rocks in Wales, Shropshire, 

 and West Somerset. P. VI. VII. E. 



3. Sempeevi'vum Linn. Houseleek. 



[S. tectorum (L.) ; 1. glabrous ciliate obovate-oblong, pet. 12 

 or more entire at the margins, hypogynous scales short convex 

 resembling glands. — E. B. 1320. — L. succulent, green with 

 purple tips, forming large rosslike tufts. — Walls and roofs 

 (planted). P. VII.] E. I. 



